The victims were Benjamin Monsivais, a former US Border Patrol and retired Immigration and Customs Enforcement agent; Joseph Perez, a retired US Customs and Border Protection port director; and retired British customs officer David Chamberlain, DHS said in a statement.

Dave Chamberlain was killed in western Afghanistan alongside two American colleagues by a gunman who turned his weapon against the US military coalition, sources have said.

Mr Chamberlain, who was in his 40s and from Westgate-on-Sea, was working for the Border Management Task Force, which trains and mentors former Afghan customs officers and border policemen, when he and his colleagues were killed on Sunday, a source said.

He said another American national had been taken to hospital with severe injuries and that an Afghan interpreter had also been injured during the shooting.

KABUL — Three foreign civilian contractors working for NATO as trainers were killed Sunday when a man in an Afghan security force uniform turned his weapon against them, NATO and Afghan officials said.

The shooter was killed in the incident in the west of the country, the International Security Assistance Force said in a statement, without giving further details or naming the nationalities of the victims.

An Afghan official who requested anonymity said he knew two Americans had been killed in the attack and they had been shot by an Afghan man in a police uniform in a military training centre near the Herat airport.

A gunman wearing an Afghan uniform turned his weapon against foreign trainers working for NATO in the western province of Herat on Sunday, killing three, in a grim 24 hours for the coalition which also saw five NATO soldiers killed.

The latest rogue shooting by an Afghan in a police or army uniform happened at a regional training center in the relatively peaceful western province near Afghanistan’s border with Iran, which is normally patrolled by Italian forces.

“An individual wearing an Afghan National Security Force uniform turned his weapon against ISAF contracted civilian employees in western Afghanistan today, killing three,” a spokesman for the NATO-led coalition said, adding that an unknown number of other people had been wounded.

for negligence after stepping on a landmine resulting in an immediate below the knee amputation in an area previously cleared by and certified clear of landmines by Ronco Consulting.

The United Nations board of inquiry found that Ronco failed to find the mine that injured Mr Fartham as well as three other mines.

The complaint states that Ronco Consulting, acting through it’s agents and/or employee’s, breached it’s professional duty of care to Fantham and did not exercise the reasonable care and skill expected of professional mine clearance companies.